For inspection requests, please call our Main Office: (720) 515-1781

285 Engineering
285 Engineering
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    • Our Services
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  • Our Services
  • Our Team
  • Septic 101
  • Contact Us

OUR SERVICES

We offer a wide variety of expert engineering & design services to meet your unique project needs. For pricing information or questions about how we can help with your next project:

call us: (720) 515-1781
Example of septic system, showing higher level treatment

ONSITE WASTEWATER TREATMENT SYSTEM DESIGN (SEPTIC SYSTEM)

  • Residential septic system design
  • Commercial septic system design
  • Short term rental septic system design
  • Site & soil evaluation
  • Failing system replacement design
  • System upgrades (adding bedrooms, barns, etc.)

Example of site plan for civil & environmental engineering project

CIVIL & ENVIRONMENTAL ENGINEERING SERVICES

  • Site & grading plans
  • Driveway design
  • Erosion & sediment control plans
  • Drainage planning
  • Phase I environmental site assessments
  • Soils testing for foundations
  • Stream restoration & monitoring
  • Fire cistern design
  • Dry hydrant fire storage pond design

Example of wetlands area

WETLAND & ECOLOGICAL CONSULTING

  • Wetland classification, delineation, mapping
  • US Army Corps of Engineers regulatory permitting
  • Local jurisdiction permitting   
  • Wetland mitigation, planning, installation, maintenance, monitoring 
  • Vegetation analysis and mapping 
  • Noxious weed surveys and management plans

AREAS WE SERVE

  • Adams County
  • Arapahoe County
  • Chaffee County
  • Clear Creek County
  • Douglas County
  • Eagle County
  • El Paso County
  • Freemont County
  • Gilpin County
  • Grand County
  • Gunnison County
  • Jefferson County
  • Lake County
  • Park County
  • Pueblo County
  • Summit County
  • Teller County
  • Weld County


We have additional experience across the State of Colorado. If you don't see your area listed here, please call us to see if we can help with your project.

Contact Us

INDUSTRY AFFILIATIONS & ORGANIZATIONS

Jefferson County, Colorado Department of Public Health logo
National Onsite Wastewater Recycling logo
Colorado Department of Public Health and the Environment logo
Colorado Professionals in Onsite Wastewater logo
National Association of Onsite Wastewater Technicians logo
  • Jefferson County, Colorado Department of Public Health logo
  • National Onsite Wastewater Recycling logo
  • Colorado Department of Public Health and the Environment logo
  • Colorado Professionals in Onsite Wastewater logo
  • National Association of Onsite Wastewater Technicians logo
  • Jefferson County, Colorado Department of Public Health logo
  • National Onsite Wastewater Recycling logo

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